Home / 6,370.85-9,555.93-1,987.98

Finding the Fourth Proportional to 6,370.85, 9,555.93 and 1,987.98

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Solution

The fourth proportional to 6,370.85, 9,555.93 and 1,987.98 is: 2,981.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,370.85 : 9,555.93 = 1,987.98 : x
  2. Step 2: Convert to fraction form
    6,370.85/9,555.93 = 1,987.98/x
  3. Step 3: Cross multiply
    6,370.85x = 9,555.93 × 1,987.98
  4. Step 4: Simplify right side
    6,370.85x = 18,996,997.72
  5. Step 5: Solve for x
    x = 18,996,997.72/6,370.85
  6. Step 6: Final answer
    x = 2,981.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.